A power distribution cabinet processing device and method

Abstract

The present invention discloses a processing device and method for a power distribution cabinet, including a bottom plate, on which a stamping bracket is installed. A stamping cylinder is installed on the top side of the cross plate of the stamping bracket, and the action rod of the stamping cylinder is fixedly connected to the top side of the upper template. During the stamping process, when the upper template moves downward and presses, through the downward pushing operation of the movable rod, the pressure in the space above the suction hole, the movable rod and the piston pad decreases, so that the sheet material can move under the adsorption action of the suction hole. The adsorbed sheet material will not displace during the stamping process, and the unity of the stamping form can be ensured; the formed sheet material is subjected to the adsorption force from below, and the formed power distribution cabinet shell will not move with the mold core. Secondly, during the upward movement of the stamping drag plate, the formed power distribution cabinet can be pushed out of the mold cavity in the lower template, and the upper and lower parts can be prevented from sticking, achieving a better demolding effect.

Description

Technical Field

[0001] The present invention relates to the technical field of power distribution cabinet processing, and specifically relates to a power distribution cabinet processing device and method. Background Art

[0002] The power distribution cabinet (box) belongs to the terminal equipment of the power distribution system and is a general term for the motor control center. The power distribution cabinet (box) assembles switchgear, measuring instruments, protective electrical appliances, and auxiliary equipment in a closed or semi-closed metal cabinet or on a screen according to electrical wiring requirements to form a low-voltage power distribution device. During the processing of the power distribution cabinet (box), the shell is processed and formed by stamping equipment.

[0003] Chinese Patent CN202311142549.X discloses a non-destructive stamping processing device for alloy plates of power distribution cabinets, including: a base; an inverted L-shaped support vertical plate is fixedly installed vertically downward at the rear edge of the base; a control box is fixedly installed on the back side wall of the support vertical plate; an upper die is installed below the upper end of the support vertical plate. To solve the problems that the middle position of the plate is prone to sink during stamping, resulting in the offset of the folded edge positions on both sides, and at the same time, the surface of the plate is easily pulled and damaged during stamping, and in addition, the stamping part needs to be taken out of the die after stamping. This invention can reduce the wear and damage to the aluminum alloy plates of the power distribution cabinet, and cooperate with the upper die to continue to move down for stamping to stamp the aluminum alloy plates of the power distribution cabinet into a concave structure, improving the integral forming effect and reducing the pulling wear on the surface of the aluminum alloy plates of the power distribution cabinet. Summary of the Invention

[0004] Object of the Invention: To solve the problem that during the stamping deformation process, due to the inconsistent forming positions of the plates, the stress levels at each position are uneven, and the plates are prone to shift during stamping, affecting the forming effect of the power distribution cabinet, the present invention provides a power distribution cabinet processing device and method.

[0005] Technical Solution: To achieve the above object, the technical solution adopted by the present invention is:

[0006] A power distribution cabinet processing device includes: a bottom plate, a stamping support is installed on the bottom plate, a stamping cylinder is installed on the top side of the cross plate of the stamping support, a positioning hole is opened inside the cross plate of the stamping support, a movable rod is movably arranged in the positioning hole, a top template is fixed at the bottom end of the movable rod, and the action rod of the stamping cylinder is fixedly connected to the top side of the top template.

[0007] A bottom template, a movable support plate is arranged above the bottom plate, a support cylinder is fixed on the top side of the movable support plate, a bottom template is fixed at the top of the support cylinder, and a die cavity is opened inside the bottom template.

[0008] Moving platen. A T-shaped hole is formed in the bottom side wall of the cavity of the lower template. A support tube is inserted into the T-shaped hole. The top end of the support tube is connected to a stamping platen, and the top groove of the T-shaped hole and the stamping platen are in a matching and fitting structure.

[0009] Stamping platen. Suction holes are formed in the stamping platen, and the suction holes are communicated with the support tube.

[0010] Piston pad. The bottom end of the support tube is connected to a piston pad. A first spring is fixedly connected between the piston pad and the bottom side of the lower template. A first air hole is formed at the bottom of the support tube.

[0011] Second air hole. A second air hole is formed at the bottom of the support cylinder, and the second air hole is located below the piston pad.

[0012] As a further solution of the present invention: The lower template is arranged below the upper template. The mold core on the bottom side of the upper template and the cavity of the lower template are in a matching structure. The top side surface of the stamping platen is parallel to the bottom side surface of the cavity after pressing, which can ensure the overall parallelism. After the mold is closed and pressed, the whole is in a flat state.

[0013] As a further solution of the present invention: A sliding hole is formed in the side surface of the lower template. A measuring rod is slidably arranged in the sliding hole. A baffle is fixed on the measuring rod. A screw hole is formed in the middle position of the baffle, and a lead screw is rotatably installed in the screw hole. One end of the lead screw is rotatably installed on the outer side surface of the lower template.

[0014] As a further solution of the present invention: Conveyor roller frames are respectively arranged on both sides of the lower template. A plurality of rubber rollers are rotatably installed in parallel in the conveyor roller frames. Rotary motors are installed at equal intervals on the outer sides of the conveyor roller frames. The output shafts of the rotary motors are connected to the rotating shafts of the corresponding rubber rollers. Connecting frames are connected to the bottoms of the two conveyor roller frames. A limiting plate is arranged on the bottom side of the moving platen. The connecting frames are slidably arranged between the two limiting plates. Limiting columns are respectively arranged on the top side of the moving platen and the bottom side of the connecting frame. A second spring is fixedly connected between the bottom side of the connecting frame and the top side wall of the moving platen. One end of the moving platen is installed on the top side of the bottom plate in cooperation with a hinge. A support spring is fixedly connected between the bottom side of the other end of the moving platen and the top side wall of the bottom plate. The upper template and the bottom plate are parallel to each other. The included angle between the moving platen and the bottom plate is 5-15°. The highest point of the roller surface of the rubber roller in the conveyor roller frame is higher than the top side surface of the lower template. Under the action of the support spring, it rebounds upward, so that the initial state of the lower template and the conveyor roller frame is an upward inclined state. During the downward pressing process, the top side surface of the plate gradually contacts the mold core from one end, which can play an exhaust role, avoid the mold core directly pressing down, generating cavity bubbles between the plate and the mold core, and affecting the forming effect of the plate. During the stamping forming process, the lower template and the upper mold are in a parallel and fitting state, which can better ensure the forming shape of the power distribution cabinet.

[0015] As a further solution of the present invention: a connecting frame is provided between the top sides of one ends of two conveying roller frames, and a detection assembly for detecting the flatness of the plate is installed on the connecting frame. The detection assembly includes a fixed frame, a swing plate is rotatably installed on the fixed frame, a connecting shaft is rotatably installed at the bottom end of the swing plate, a measuring roller is installed on the connecting shaft, a through hole is opened in the middle of the swing plate, a curved rod is installed on the side surface of the fixed frame, the curved rod penetrates through the through hole inside the swing plate, a second electrode ring is fixed at the top port of the through hole, a first electrode ring is movably installed at the top of the annular rod, a through screw hole is opened in the first electrode ring, a locking screw is rotatably installed in the screw hole, a third spring is fixedly connected between the middle position of the bottom side of the swing plate and the side surface of the fixed frame, a storage battery and an indicator light are installed on the top side surface of the connecting frame, and the storage battery, the indicator light, the first electrode ring and the second electrode ring are connected in series, which can realize the detection of the flatness of the plate. At the same time, under the limit cooperation of the first electrode ring, the plate is stuck between the measuring roller and the rubber roller and cannot move forward. After the detection, the unqualified plates can be blocked, reducing the waste of materials, and at the same time improving the yield of stamping forming, and better ensuring the forming effect of the power distribution cabinet.

[0016] A stamping method for the outer shell of a power distribution cabinet includes the following steps:

[0017] S1: Material preparation: Select metal plates or strips to ensure that their quality and performance meet the stamping requirements. According to needs, pre-treat the materials to improve their stamping performance.

[0018] S2: Die design and installation: Design a stamping die according to the product requirements, including a punch, a die, and a stripper plate component, and ensure that their dimensions, shapes, and accuracies meet the requirements. Install the die on the stamping machine and adjust parameters such as die clearance and guiding accuracy to ensure the smooth progress of the stamping process.

[0019] S3: Stamping machine adjustment: Adjust the punching pressure, punching speed, and stroke parameters of the stamping machine to meet the stamping requirements of the power distribution cabinet, and set the punching pressure value. The punching pressure of the plate: The punching pressure P can usually be expressed by the following formula:

[0020] P = k × L × T

[0021] Where k is a coefficient, L is the perimeter of the stamping part, and T is the thickness of the plate.

[0022] S4: Material positioning and feeding: Position the metal plate or strip on the die to ensure that it does not shift or deform during the stamping process. Use a feeding mechanism to feed the material into the die to ensure that the material can enter the die evenly and continuously during the stamping process.

[0023] S5: Stamping operation: Start the stamping cylinder to move the die core downward in the die cavity to stamp the metal sheet. During the stamping process, pay attention to observing the quality of the stamped parts.

[0024] S6: Unloading and inspection: After stamping, use the unloading mechanism to take out the stamped parts from the mold, and inspect the stamped parts, including dimension measurement and appearance inspection.

[0025] Advantages of the present invention:

[0026] During stamping and forming, the material is fed upward at an inclined angle to form a stamping angle between the sheet and the stamping die core, enabling the die core to stamp from one end. During the stamping process, it can avoid the generation of air pockets between the die core and the sheet, ensure the contact between the sheet and the die core, and better guarantee the stamping form.

[0027] During the stamping and forming process, when the upper template moves downward and presses, through the downward pushing operation of the movable rod, the space pressure above the suction hole, the movable rod, and the piston pad is reduced, enabling the sheet to move under the adsorption of the suction hole. The adsorbed sheet will not displace during the stamping process, ensuring the unity of the stamping form.

[0028] When the die core at the bottom of the upper template disengages, due to the adsorption force on the lower part of the formed sheet, the formed power distribution cabinet shell will not move with the die core. Secondly, during the upward movement of the stamping slide plate, the formed power distribution cabinet can be pushed out of the die cavity in the lower template, achieving non-sticking between the upper and lower parts, obtaining a better demoulding effect, and at the same time ensuring the stable position of the formed sheet and the unified formed structure during the stamping and forming process.

[0029] During the stamping process of the present invention, the position of the sheet is accurately limited, ensuring that the position of the sheet does not change throughout the stamping process, and at the same time being able to cooperate with better demoulding operations to better achieve the stamping and forming operation of the power distribution cabinet. Description of the drawings

[0030] The present invention will be further described below with reference to the drawings.

[0031] Figure 1 is the overall three-dimensional structure schematic diagram of the present invention.

[0032] Figure 2 is the first perspective schematic diagram of the conveying structure of the present invention.

[0033] Figure 3 is the second perspective schematic diagram of the conveying structure of the present invention.

[0034] Figure 4 is the three-dimensional structure schematic diagram of the lower template.

[0035] Figure 5It is a schematic top view structure of the lower template.

[0036] Figure 6 It is Figure 5 The schematic A-A sectional view structure in it.

[0037] Figure 7 It is a schematic measurement structure.

[0038] In the figure: 1. Base plate, 2. Stamping bracket, 3. Stamping cylinder, 4. Movable rod, 5. Upper template, 6. Measurement structure, 7. Connecting frame, 8. Storage battery, 9. Indicator light, 10. Lower template, 11. Movable supporting plate, 12. Stamping drag plate, 13. Suction hole, 14. T-shaped hole, 15. Movable rod, 16. Measuring rod, 17. Lead screw, 18. Baffle, 20. Piston pad, 21. First air hole, 22. Second air hole, 23. Support cylinder, 24. First spring, 25. Support spring, 51. Conveyor roller frame, 52. Rubber roller, 53. Rotary motor, 54. Second spring, 55. Connecting frame, 56. Limiting plate, 61. Fixed frame, 62. Measuring roller, 63. Swing plate, 64. First electrode ring, 65. Locking screw, 66. Ring rod, 67. Second electrode ring, 68. Third spring. Detailed implementation manners

[0039] The following further clarifies the present invention in conjunction with the attached drawings and specific embodiments. It should be understood that these embodiments are only used to illustrate the present invention and not to limit the scope of the present invention. After reading the present invention, those skilled in the art's various equivalent modifications of the present invention all fall within the scope defined by the appended claims of this application.

[0040] Please refer to Figures 1-6 As shown, the present invention is a processing device for a power distribution cabinet, including: a base plate 1, a stamping bracket 2 is installed on the base plate 1, a stamping cylinder 3 is installed on the top side of the cross plate of the stamping bracket 2, a positioning hole is opened inside the cross plate of the stamping bracket 2, a movable rod 4 is movably arranged in the positioning hole, the bottom end of the movable rod 4 is fixed with an upper template 5, and the actuating rod of the stamping cylinder 3 is fixedly connected to the top side of the upper template 5.

[0041] A lower template 10, a movable supporting plate 11 is arranged above the base plate 1, a support cylinder 23 is fixed on the top side of the movable supporting plate 11, the lower template 10 is fixed on the top of the support cylinder 23, and a mold cavity is opened inside the lower template 10.

[0042] The top of the stamping drag plate 12 is provided with a rubber layer, through which the stamping drag plate 12 is more closely combined with the stamping part, and at the same time, the airtightness between them is improved.

[0043] The movable platen 11, a T-shaped hole 14 is opened on the bottom side wall of the cavity of the lower template 10, a support tube 15 is inserted into the T-shaped hole 14, the top end of the support tube 15 is connected with a stamping platen 12, and the top groove of the T-shaped hole 14 and the stamping platen 12 are in a matching and fitting structure.

[0044] The stamping platen 12, an air suction hole 13 is opened in the stamping platen 12, and the air suction hole 13 is communicated with the support tube 15.

[0045] The piston gasket 20, the bottom end of the support tube 15 is connected with a piston gasket 20, a first spring 24 is fixedly connected between the piston gasket 20 and the bottom side of the lower template 10, a first air hole 21 for communicating the support tube 15 with the support cylinder 23 is opened at the bottom of the support tube 15, and through the first air hole 21, the support tube 15 and the support cylinder 23 are mutually communicated and the gas flows mutually.

[0046] The space formed by the chamber of the upper half of the piston 20, the support tube 15 and the support cylinder 23 is recorded as an expansion and suction space. A second air hole 22 communicated with the outside is opened at the bottom of the support cylinder 23, a third air hole is opened at the top of the support cylinder 23, an exhaust pipe is installed on the third air hole, and a solenoid valve is arranged on the exhaust pipe.

[0047] The second air hole 22, a second air hole 22 is opened at the bottom of the support cylinder 23, and the second air hole 22 is located below the piston gasket 20.

[0048] The lower template 10 is arranged below the upper template 5, the die core on the bottom side of the upper template 5 and the cavity of the lower template 10 are in a matching structure, and the top side surface of the stamping platen 12 is parallel to the bottom side surface of the cavity after being pressed.

[0049] The bottom end of the support tube 15 extends into the support cylinder 23, the support tube 15 is slidably connected up and down in the support cylinder 23, and the piston 20 is installed at the bottom end of the support tube 15. The support tube 15 and the support cylinder 23 are sealed by a sealing rubber ring. Specifically, an opening is formed in the upper part of the support cylinder 23, a sealing rubber ring is arranged inside the opening, and the bottom end of the support tube 15 passes through the sealing rubber ring and extends into the support cylinder 23. On the one hand, the sealing between the support tube 15 and the support cylinder 23 is realized, and on the other hand, the up and down sliding of the support tube 15 in the support cylinder 23 is realized.

[0050] The first spring 24 is used to support the reset of the pipe 15. The first spring 24 is sleeved outside the support pipe 15. The upper end of the first spring 24 is fixedly connected to the top end of the support cylinder 23, and the lower end is fixedly connected to the bottom end of the support pipe 15. When the support pipe 15 moves downward under the gravity of the workpiece to be punched, the first spring 24 is stretched. When the solenoid valve is opened, external air enters the expansion suction space, making the external air pressure in the expansion suction space equal. After the workpiece to be punched is removed, the first spring 24 contracts and resets, driving the support pipe 15 to move upward until it moves to the initial position. In another embodiment of the present invention, the first spring 24 is arranged inside the support cylinder 23 and below the piston 20. When the support pipe 15 moves downward under the gravity of the workpiece to be punched, the first spring 24 is compressed. When the solenoid valve is opened, external air enters the expansion suction space, making the external air pressure in the expansion suction space equal. After the workpiece to be punched is removed, the first spring 24 elongates and resets, driving the support pipe 15 to move upward until it moves to the initial position.

[0051] During operation, when punching, after the workpiece to be punched is transported to the punching position and punching is carried out, due to the unbalanced force on the forming structure, the punched sheet is likely to shift, resulting in a non-standard punching structure. To achieve a better punching effect, when the upper template 5 moves downward to press, the bottom side of the sheet first contacts the top side of the punching drag plate 12. During the downward pressing of the sheet, through the downward pushing operation of the support pipe 15, the piston pad 20 moves downward. Inside the support cylinder 23, as the piston pad 20 moves downward, the pressure in the space above the suction hole 13, the support pipe 15, and the piston pad 20 decreases, enabling the sheet to move under the adsorption of the suction hole 13. The adsorbed sheet will not displace during the punching process, ensuring the unity of the punching form.

[0052] During demoulding, when the core at the bottom of the upper template 5 moves upward, under the action of the first spring 24, the piston pad 20 is driven to move upward, restoring the pressure in the support cylinder 23, and the released punched power distribution cabinet housing can be realized. When the core at the bottom of the upper template 5 disengages, since the formed sheet is subjected to the adsorption force from below, the formed power distribution cabinet housing will not move with the core. Secondly, during demoulding, when the punching drag plate 12 moves upward, the formed power distribution cabinet can be pushed out of the mold cavity in the lower template 10, achieving non-sticking between the upper and lower parts and a better demoulding effect. At the same time, it ensures that the position of the formed sheet is stable and the forming structure is unified during the punching and forming process.

[0053] The side of the lower template 10 is provided with a sliding hole, and a measuring rod 16 is slidably arranged in the sliding hole. A baffle 18 is fixed on the measuring rod 16. A screw hole is formed in the middle position of the baffle 18, and a lead screw 17 is rotatably installed in the screw hole. One end of the lead screw 17 is rotatably installed on the outer side surface of the lower template 10. When feeding the plate, by rotating the baffle 18 and with the extension cooperation of the measuring rod 16, the baffle 18 is adjusted to a suitable scalar position, so as to realize the limitation of the plate when feeding the plate and ensure the accuracy of plate feeding.

[0054] Conveyor roller frames 51 are respectively arranged on both sides of the lower template 10. A plurality of rubber rollers 52 are rotatably installed in parallel in the conveyor roller frames 51. Rotary motors 53 are equidistantly installed on the outer sides of the conveyor roller frames 51. The output shafts of the rotary motors 53 are connected to the rotating shafts of the corresponding rubber rollers 52. A connecting frame 55 is connected to the bottoms of the two conveyor roller frames 51. A limiting plate 56 is arranged on the bottom side of the movable support plate 11. The connecting frame 55 is slidably arranged between the two limiting plates 56. Limiting columns are respectively arranged on the top side of the movable support plate 11 and the bottom side of the connecting frame 55. A second spring 54 is fixedly connected between the bottom side of the connecting frame 55 and the top side wall of the movable support plate 11. One end of the movable support plate 11 is installed on the top side of the bottom plate 1 in cooperation with a hinge. A support spring 25 is fixedly connected between the bottom side of the other end of the movable support plate 11 and the top side wall of the bottom plate 1. The upper template 5 and the bottom plate 1 are parallel to each other. The included angle between the movable support plate 11 and the bottom plate 1 is 5 - 15°. The highest point of the roller surface of the rubber roller 52 in the conveyor roller frame 51 is higher than the top side surface of the lower template 10. When performing stamping, in order to ensure the stability of the stamping process of the stamping die, a movable support plate 11 is arranged above the bottom plate 1. The movable support plate 11 is a swing structure. The other end of the movable support plate 11 rebounds upward under the action of the support spring 25, so that the initial state of the lower template 10 and the conveyor roller frame 51 is an upward inclined state. When conveying the plate, the plate is placed on the rubber roller 52 in the conveyor roller frame 51. Through the coordinated operation of a plurality of rotary motors 53, the plate can be moved upward obliquely. After the plate moves to the position limited by the baffle 18, it means that the plate feeding is completed. When the upper template 5 presses downward, the plate is under force, and the entire lifting and conveying structure is pressed down. During the downward pressing process, the top side surface of the plate gradually contacts the die core from one end, which can play an exhaust role, avoid the die core directly pressing down and generating cavity bubbles between the die core and the plate, affecting the forming effect of the plate. During the stamping forming process, the lower template 10 and the upper template 5 are in a parallel and fitting state, which can better ensure the forming shape of the power distribution cabinet.

[0055] In another embodiment, the conveying plane of the rubber roller 52 is parallel to the plane of the bottom plate 1. Since the upper surface of the lower mold 10 is parallel to the upper surface of the movable support plate 11, and the movable support plate 11 is inclined on the bottom plate 1, there is an inclination angle between the conveying plane of the rubber roller 52 and the upper surface of the lower mold 10. In this way, when the workpiece to be stamped is placed on the upper surface of the lower mold 10, there is an angular gap between the workpiece to be stamped and the stamping platen 12 first, and the outside air enters the expansion and suction space through the angular gap; then the stamped part and the stamping platen 12 are in mutual contact, and at this time the outside air cannot enter the expansion and suction space. Under the action of the gravity of the stamped part, the stamping platen 12 is driven to move downward. The downward movement of the stamping platen 12 drives the support tube 15 to move downward, and the downward movement of the support tube 15 drives the piston 20 to move downward. During the downward movement of the piston 20, on the one hand, the air below the piston 20 in the support cylinder 23 is discharged through the second air hole 22, and on the other hand, the downward movement of the piston 20 makes the expansion and suction space larger, the air density decreases, and the negative pressure increases. Under the negative pressure action of the expansion and suction space, the stamped part and the stamping platen 12 are negatively pressure adsorbed together.

[0056] Please refer to Figure 7As shown, a connecting frame 7 is arranged between the top sides of one end of the two conveying roller frames 51, and a detection component for detecting the flatness of the plate is installed on the connecting frame 7. The detection component includes a fixed frame 61, and a swing plate 63 is rotatably installed on the fixed frame 61. A connecting shaft is rotatably installed at the bottom end of the swing plate 63, and a measuring roller 62 is installed on the connecting shaft. A through hole is opened in the middle of the swing plate 63, and a bent rod is installed on the side of the fixed frame 61. The bent rod passes through the through hole inside the swing plate 63, and a second electrode ring 67 is fixed to the top end of the through hole. A first electrode ring 64 is movably installed on the top of the annular rod 66, and a through screw hole is opened on the first electrode ring 64, and a locking screw 65 is rotatably installed in the screw hole. A third spring 68 is fixed between the middle position of the bottom side of the swing plate 63 and the side of the fixed frame 61, and a storage battery 8 and an indicator light 9 are installed on the top side of the connecting frame 7. The storage battery 8, the indicator light 9, the first electrode ring 64 and the second electrode ring 67 are connected in series. In order to better ensure the flatness of the plate The measuring roller 62 is a type of morphology. When the plate is conveyed, the plate passes under the measuring roller 62. Under the action of the third spring 68, the measuring roller 62 can be ensured to stably move along the surface of the plate. Before loading, the position of the first electrode ring 64 on the annular rod 66 is adjusted with the cooperation of the locking screw 65, and the error spacing between the second electrode ring 67 and the first electrode ring 64 is adjusted. During the plate conveying process, the measuring roller 62 can roll along the surface of the plate, and the lifting angle of the swing plate 63 is stable. When the plate is uneven, the measuring roller 62 is in the uneven rolling position, and the swing angle of the swing plate 63 changes. When the preset error is exceeded, the second electrode ring 67 will contact the first electrode ring 64, so that the indicator light 9 is powered on and flashes, and the flatness of the plate can be detected. At the same time, under the limit cooperation of the first electrode ring 64, the plate is stuck between the measuring roller 62 and the rubber roller 52 and cannot continue to move forward. After detection, unqualified plates can be blocked to reduce material waste and improve the yield rate of stamping forming, which can better ensure the forming effect of the distribution cabinet.

[0057] A method for stamping a power distribution cabinet shell comprises the following steps:

[0058] S1: Material preparation: Select metal sheets or strips to ensure that their quality and performance meet the stamping requirements. Pre-treat the materials as needed to improve the stamping performance of the materials.

[0059] S2: Die design and installation: Design stamping dies according to product requirements, including punch, die, and stripper plate components, ensure that their size, shape, and accuracy meet the requirements, install the die on the stamping machine, and adjust parameters such as die clearance and guide accuracy to ensure a smooth stamping process.

[0060] S3: Press Machine Adjustment: Adjust the punching force, punching speed, and stroke parameters of the press machine to meet the punching requirements of the power distribution cabinet.

[0061] S4: Material Positioning and Feeding: Position the metal sheet or strip on the die to ensure that it does not shift or deform during the punching process. Use the feeding mechanism to feed the material into the die to ensure that the material can enter the die evenly and continuously during the punching process.

[0062] S5: Punching Operation: Start the punching cylinder to make the die core move downward in the die cavity to punch the metal sheet. During the punching process, pay attention to observing the quality of the punched parts.

[0063] S6: Unloading and Inspection: After punching is completed, use the unloading mechanism to remove the punched parts from the die, and inspect the punched parts, including dimension measurement and appearance inspection.

[0064] In S3, reasonably set the punching pressure value. The punching pressure of the sheet metal: The punching pressure P can usually be expressed by the following formula:

[0065] P = k × L × T;

[0066] Where k is the coefficient, L is the perimeter of the punched part, and T is the thickness of the sheet metal.

[0067] Working Principle: When loading the sheet metal, by rotating the baffle 18 and with the extension cooperation of the measuring rod 16, adjust the baffle 18 to the appropriate scalar position to limit the sheet metal during loading, ensuring the accuracy of sheet metal loading.

[0068] Before loading, adjust the position of the first electrode ring 64 on the annular rod 66 in cooperation with the locking screw 65, and adjust the error spacing between the second electrode ring 67 and the first electrode ring 64. During the transportation of the sheet metal, the measuring roller 62 can roll along the surface of the sheet metal, and at the same time, the lifting angle of the swing plate 63 is stable. When the sheet metal is uneven, when the measuring roller 62 is at the uneven position during rolling, the swing angle of the swing plate 63 changes. When it exceeds the preset error, the second electrode ring 67 will contact the first electrode ring 64, causing the indicator light 9 to light up and flash, which can realize the detection of the flatness of the sheet metal. At the same time, with the limiting cooperation of the first electrode ring 64, the sheet metal is stuck between the measuring roller 62 and the rubber roller 52 and cannot move forward. After detection, unqualified sheet metal can be blocked, reducing material waste, and at the same time improving the yield of punching forming, and better ensuring the forming effect of the power distribution cabinet.

[0069] When stamping, in order to ensure the stability of the stamping process of the stamping die, a movable supporting plate 11 is arranged above the bottom plate 1. The movable supporting plate 11 is a swing structure. The other end of the movable supporting plate 11 rebounds upward under the action of the supporting spring 25, so that the initial state of the lower template 10 and the conveying roller frame 51 is an upward inclined state. When conveying the plate, place the plate on the rubber roller 52 on the conveying roller frame 51. Through the coordinated operation of multiple rotating motors 53, the plate can move upward obliquely. After the plate moves to the position defined by the baffle 18, it indicates that the feeding of the plate is completed. When the upper template 5 presses downward, under the force of the plate, the entire lifting and conveying structure is pressed down. During the pressing process, the top side of the plate gradually contacts the die core from one end, which can play an exhaust role, avoiding the die core directly pressing down and generating cavity bubbles between the plate and the die core, affecting the forming effect of the plate. During the stamping and forming process, the lower template 10 and the upper template 5 are in a parallel and fitting state, which can better ensure the forming shape of the power distribution cabinet.

[0070] When stamping after the plate is conveyed to the stamping position, due to the unbalanced force on the forming structure, it is easy to cause the stamping plate to shift, resulting in a non-standard stamping structure. To achieve a better stamping effect, when the upper template 5 moves downward and presses, the bottom side of the plate first contacts the top side of the stamping support plate 12. During the downward pressing process of the plate, through the downward pushing operation of the support tube 15, the piston pad 20 moves downward. In the support cylinder 23, as the piston pad 20 moves downward, the pressure in the space above the suction hole 13, the support tube 15 and the piston pad 20 decreases, so that the plate can move under the adsorption of the suction hole 13. The adsorbed plate will not displace during the stamping process, ensuring the unity of the stamping form.

[0071] When demolding, when the die core at the bottom of the upper template 5 moves upward, under the action of the first spring 24, the piston pad 20 is driven to move upward, restoring the pressure in the support cylinder 23, and the power distribution cabinet shell formed by stamping can be released. When the die core at the bottom of the upper template 5 disengages, due to the adsorption force of the formed plate from below, the formed power distribution cabinet shell will not move with the die core. Secondly, when demolding, during the upward movement of the stamping support plate 12, the formed power distribution cabinet can be pushed out of the die cavity in the lower template 10, achieving non-sticking between the upper and lower parts, achieving a better demolding effect, and at the same time ensuring that the position of the formed plate is stable and the forming structure is unified during the stamping and forming process.

[0072] The above are only the preferred embodiments of the present invention. It should be noted that for those of ordinary skill in the art, without departing from the principle of the present invention, several improvements and retouches can be made, and these improvements and retouches should also be regarded as the protection scope of the present invention.

Claims

1. A power distribution cabinet processing device, characterized in that, Including: A bottom plate (1), on which a stamping bracket (2) is installed. On the top side of the cross plate of the stamping bracket (2), a stamping cylinder (3) is installed. A positioning hole is opened inside the cross plate of the stamping bracket (2), and a movable rod (4) is movably arranged in the positioning hole. The bottom end of the movable rod (4) is fixed with an upper template (5), and the acting rod of the stamping cylinder (3) is fixedly connected to the top side of the upper template (5); A lower template (10). An active support plate (11) is arranged above the bottom plate (1). A support cylinder (23) is fixed to the top side of the active support plate (11), and a lower template (10) is fixed to the top of the support cylinder (23). A mold cavity is opened in the lower template (10); An active support plate (11). A T-shaped hole (14) is opened in the bottom side wall of the mold cavity of the lower template (10). A support pipe (15) is inserted into the T-shaped hole (14). The top end of the support pipe (15) is connected to a stamping drag plate (12), and the top groove of the T-shaped hole (14) and the stamping drag plate (12) are in a matching and fitting structure; A stamping drag plate (12). An air suction hole (13) is opened in the stamping drag plate (12), and the air suction hole (13) is communicated with the support pipe (15); A piston (20). The bottom end of the support pipe (15) is connected to a piston (20). A first spring (24) is fixedly connected between the piston (20) and the bottom side of the lower template (10). A first air hole (21) is opened at the bottom of the support pipe (15); A second air hole (22). A second air hole (22) is opened at the bottom of the support cylinder (23). The second air hole (22) is located below the piston (20). A third air hole is opened at the top of the support cylinder (23), and an exhaust pipe is installed on the third air hole. An electromagnetic valve is arranged on the exhaust pipe; The space formed by the piston (20), the support pipe (15) and the chamber in the upper half of the support cylinder (23) is an expansion air suction space; The lower template (10) is arranged below the upper template (5). The mold core on the bottom side of the upper template (5) and the mold cavity of the lower template (10) are in a matching structure. The top side surface of the stamping drag plate (12) is parallel to the bottom side surface of the mold cavity after being pressed.

2. The processing device for a power distribution cabinet according to claim 1, wherein, A sliding hole is opened on the side surface of the lower template (10). A measuring rod (16) is slidably arranged in the sliding hole. A baffle (18) is fixed on the measuring rod (16). A screw hole is opened in the middle position of the baffle (18), and a lead screw (17) is rotatably installed in the screw hole. One end of the lead screw (17) is rotatably installed on the outer side surface of the lower template (10).

3. The processing device for a power distribution cabinet according to claim 2, characterized in that, Conveying roller frames (51) are respectively arranged on both sides of the lower template (10), and a plurality of rubber rollers (52) are rotatably mounted in parallel in the conveying roller frames (51). Rotating motors (53) are equidistantly mounted on the outer sides of the conveying roller frames (51), and the output shafts of the rotating motors (53) are connected to the rotating shafts of the corresponding rubber rollers (52). The bottoms of the two conveying roller frames (51) are connected to a first connecting frame (55), and a limiting plate (56) is arranged on the bottom side of the movable support plate (11). The first connecting frame (55) is slidably arranged between the two limiting plates (56). Limiting columns are respectively arranged on the top side of the movable support plate (11) and the bottom side of the first connecting frame (55), and a second spring (54) is fixedly connected between the bottom side of the first connecting frame (55) and the top side wall of the movable support plate (11).

4. A power distribution cabinet processing device according to claim 3, characterized in that, One end of the movable support plate (11) is mounted on the top side of the bottom plate (1) in cooperation with the hinge, and a support spring (25) is fixedly connected between the bottom side of the other end of the movable support plate (11) and the top side wall of the bottom plate (1).

5. The processing device for a power distribution cabinet according to claim 4, wherein, A second connecting frame (7) is arranged between the top sides of one end of the two conveying roller frames (51), and a detection component for detecting the flatness of the plate is installed on the second connecting frame (7), and the detection component comprises a fixed frame (61), a swing plate (63) is rotatably installed on the fixed frame (61), a connecting shaft is rotatably installed at the bottom end of the swing plate (63), and a measuring roller (62) is installed on the connecting shaft, a through hole is opened in the middle of the swing plate (63), a curved rod is installed on the side of the fixed frame (61), the curved rod passes through the through hole inside the swing plate (63), a second electrode ring (67) is fixed to the top end of the through hole, a first electrode ring (64) is movably installed on the top of the annular rod (66), a through screw hole is opened on the first electrode ring (64), and a locking screw (65) is rotatably installed in the screw hole, and a third spring (68) is fixedly connected between the middle position of the bottom side of the swing plate (63) and the side of the fixed frame (61).

6. The processing device for a power distribution cabinet according to claim 5, wherein A storage battery (8) and an indicator light (9) are mounted on the top side of the second connecting frame (7); the storage battery (8), the indicator light (9), the first electrode ring (64) and the second electrode ring (67) are connected in series to form a structure.

7. A power distribution cabinet processing device according to claim 6, characterized in that, The upper template (5) and the bottom plate (1) are parallel to each other, the angle between the movable support plate (11) and the bottom plate (1) is 5-15 degrees, and the highest point of the roller surface of the rubber roller (52) in the conveying roller frame (51) is higher than the top side surface of the lower template (10).

8. A processing method for a power distribution cabinet, characterized in that, The power distribution cabinet processing device according to claim 1 comprises the following steps: S1: Material preparation: Select metal sheets or strips to ensure that their quality and performance meet the stamping requirements. Pre-treat the materials as needed to improve the stamping performance of the materials. S2: Die design and installation: Design stamping dies according to product requirements, including punch, die, and stripper plate components, ensure that their size, shape, and accuracy meet the requirements, install the die on the stamping machine, and adjust the die gap and guide accuracy parameters to ensure the smooth progress of the stamping process; S3: Press machine adjustment: Adjust the punching pressure, punching speed, and stroke parameters of the press machine to meet the punching requirements of the power distribution cabinet; S4: Material positioning and feeding: Position the metal sheet or strip on the die to ensure that it does not shift or deform during the punching process; Use the feeding mechanism to feed the material into the die to ensure that the material can enter the die evenly and continuously during the punching process; S5: Punching operation: Start the punching cylinder to make the die core move downward in the die cavity to punch the metal sheet. During the punching process, pay attention to observing the quality of the punched parts; S6: Unloading and inspection: After punching, use the unloading mechanism to take out the punched parts from the die, inspect the punched parts, and perform dimensional measurement and appearance inspection.

9. The processing method of the power distribution cabinet according to claim 8, wherein In S3, reasonably set the punching pressure value. The punching pressure of the sheet: The punching pressure P is usually expressed by the following formula: P = k × L × T; Where, k is the coefficient, L is the perimeter of the punched part, and T is the thickness of the sheet.

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